MAIN PASS BLOCK 21 Field Activity and Well Summary

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Total wells

4
MAIN PASS BLOCK 21 field

Drill activity

—
drill dates not in our copy of this source

The MAIN PASS BLOCK 21 oil & gas field in Louisiana contains 4 wells on file.

Top operators: LOBO OPERATING, INC., PLUMB OPERATING COMPANY, INC., and others.

Most recent well: SL 15536, operated by LOBO OPERATING, INC. — last updated June 2025.

MAIN PASS BLOCK 21 field coverage

Parishes the MAIN PASS BLOCK 21 field intersects.

Calcasieu ParishUnion ParishTangipahoa ParishCaldwell ParishTensas ParishJackson ParishGrant ParishLincoln ParishJefferson Davis ParishLafayette ParishVermilion ParishEast Carroll ParishEast Feliciana ParishSt. Bernard ParishIberville ParishRichland ParishSt. Martin ParishClaiborne ParishEvangeline ParishSt. Landry ParishPointe Coupee ParishLaSalle ParishWebster ParishSt. James ParishPLAQUEMINES — 4 wellsMorehouse ParishRapides ParishAvoyelles ParishWinn ParishVernon ParishCatahoula ParishAssumption ParishDe Soto ParishCaddo ParishRed River ParishWashington ParishSabine ParishJefferson ParishSt. Tammany ParishCameron ParishEast Baton Rouge ParishIberia ParishNatchitoches ParishTerrebonne ParishBienville ParishBossier ParishAllen ParishOuachita ParishSt. John the Baptist ParishSt. Helena ParishWest Feliciana ParishSt. Mary ParishLafourche ParishWest Carroll ParishConcordia ParishLivingston ParishWest Baton Rouge ParishMadison ParishOrleans ParishAscension ParishAcadia ParishSt. Charles ParishBeauregard ParishFranklin Parish
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Recent wells

Well Name Parish Last activity Updates Operator API
SL 15536 PLAQUEMINES 2025-06-13 LOBO OPERATING, INC. 17725205300000
SL 21379 PLAQUEMINES 2016-02-14 MACK ENERGY CO. 17725207320000
SL 15536 PLAQUEMINES 2015-03-18 LOBO OPERATING, INC. 17725205940000
SL 9176 PLAQUEMINES 1982-10-19 PLUMB OPERATING COMPANY, INC. 17725202780000

Top Operators in the MAIN PASS BLOCK 21 field by total wells

LOBO OPERATING, INC.2PLUMB OPERATING COMPANY, INC.1MACK ENERGY CO.1

Operators: Lobo Operating, Inc., Plumb Operating Company, Inc., Mack Energy Co..

Parishes Intersected by the MAIN PASS BLOCK 21 field

PLAQUEMINES4
PLAQUEMINES

Other Major Fields in Louisiana most active by total wells

Compare the MAIN PASS BLOCK 21 field against the other busiest oil and gas fields in Louisiana: